The Salzburg Cathedral (German: Salzburger Dom) is a 17th century baroque cathedral in the city of Salzburg, dedicated to Saint Rupert of Salzburg. It is the site of Mozart's baptism. The site occupied by the Salzburg Cathedral was probably a sacred place for sacrifices in Celtic as well as Roman times. The first cathedral was built under Saint Vergilius of Salzburg, who might have used foundations by St. Rupert. The first Dom was recorded in 774.